18180180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:406

約数の個数: 96

約数和(自身を含む): 57214080

約数和(自身を除く): 39033900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 131, 135, 180, 257, 262, 270, 393, 514, 524, 540, 655, 771, 786, 1028, 1179, 1285, 1310, 1542, 1572, 1965, 2313, 2358, 2570, 2620, 3084, 3537, 3855, 3930, 4626, 4716, 5140, 5895, 6939, 7074, 7710, 7860, 9252, 11565, 11790, 13878, 14148, 15420, 17685, 23130, 23580, 27756, 33667, 34695, 35370, 46260, 67334, 69390, 70740, 101001, 134668, 138780, 168335, 202002, 303003, 336670, 404004, 505005, 606006, 673340, 909009, 1010010, 1212012, 1515015, 1818018, 2020020, 3030030, 3636036, 4545045, 6060060, 9090090, 18180180]

約数ペア:

[(1, 18180180), (2, 9090090), (3, 6060060), (4, 4545045), (5, 3636036), (6, 3030030), (9, 2020020), (10, 1818018), (12, 1515015), (15, 1212012), (18, 1010010), (20, 909009), (27, 673340), (30, 606006), (36, 505005), (45, 404004), (54, 336670), (60, 303003), (90, 202002), (108, 168335), (131, 138780), (135, 134668), (180, 101001), (257, 70740), (262, 69390), (270, 67334), (393, 46260), (514, 35370), (524, 34695), (540, 33667), (655, 27756), (771, 23580), (786, 23130), (1028, 17685), (1179, 15420), (1285, 14148), (1310, 13878), (1542, 11790), (1572, 11565), (1965, 9252), (2313, 7860), (2358, 7710), (2570, 7074), (2620, 6939), (3084, 5895), (3537, 5140), (3855, 4716), (3930, 4626)]